//// inline.cpp -- using an inline function
//#include <iostream>
//
////an inline function definition
//inline double square(double x) { return  x * x; }
//
//int main()
//{
//	using namespace std;
//	double a, b;
//	double c = 13.;
//
//	a = square(5.0);
//	b = square(4.5 + 7.5);	//can pass expressions
//	cout << "a = " << a << ", b= " << b << "\n";
//	cout << "c = " << c;
//	cout << ",c squard = " << square(c++) << "\n";
//	cout << "Now c = " << c << "\n";
//	return 0;
//}